package com.QiLin.service;

import com.QiLin.domain.letters;

import javax.servlet.http.HttpSession;
import java.util.List;

public interface LetterService {
    boolean SendService(letters letters, HttpSession httpSession) throws Exception;
    boolean SendDetection(String ReceiveUser,String Headline);
    List<letters> UpdatesService(HttpSession session);
}
